body{
    display: flex;
    justify-content: center;
    background-color: #eef2f8;
    margin: 0;
}
/* 标题 */
.caption{
    position: absolute;
    margin-top: 180px;
    font-family: '方正和悦体 简';
    font-size: 68px;
    font-weight: bold;
    color: rgb(92, 165, 230);
}

.frame {
    height: 900px;
    display: flex;
    /* align-items: center; */
    justify-content: center
}
.frame_caption {
    height: 100px;
    width: 600px;
    position: absolute;
    top:200px;
}
.frame_caption a{
    display: block;
    height: 100px;
    width: 600px;
    color:rgb(255,255,255);
    font-family: '黑体';
    font-size: 50px;
    text-align: center;
    line-height: 100px;
}
.frame_login {
    width:200px;
    height: 200px;
    position: absolute;
    top:350px;
}
.frame_login_textbox {
    width:200px;
    height: 40px;
    border:1px solid rgb(46, 101, 219);
    background-color: rgb(255, 255, 255);
    border-radius: 5px;

}
.frame_login_textbox:focus {
    box-shadow: 0 0 15px rgb(53, 50, 228);
    outline: none;
}
.frame_login_textbox:active {
    box-shadow: 0 0 15px rgb(53, 50, 228);
    outline: none;
}
.frame_login_button {
    border-radius: 5px;
    width:204px;
    height: 40px;
    border:0px;
    background-color: rgb(91, 110, 233);
    color:rgb(255, 255, 255);

}
.frame_login_button:active {
    background-color: rgb(53, 50, 228);
    box-shadow: 0 0 15px rgb(53, 50, 228);
}
.frame_login_help{
    height: 40px;
    width:204px;
}
.frame_login_help a{
    display: block;
    height: 40px;
    width:102px;
    line-height: 40px;
    color:rgb(0, 0, 0);
    box-shadow: 0 0 15px rgb(53, 50, 228);
    outline: none;
}
.frame_login_help_L {
    float: left;
    text-align: left;
}
.frame_login_help_R {
    float: right;
    text-align: right;
}
.tips_userT{
    font-size: 16px;
    font-weight: bold;
    color:green;
    display: block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    color:green;
    position: absolute;
    margin-top: -40px;
    margin-left: 220px;
}
.tips_userF{
    display: block;
    font-size: 16px;
    font-weight: bold;
    width: 80px;
    height: 40px;
    line-height: 40px;
    color:red;
    position: absolute;
    margin-top: -40px;
    margin-left: 220px;

}
/*注册界面*/
.register {
    position: absolute;
    width: 300px;
    height: 400px;
    background-color: #eef2f8;
    margin-top: -300px;
    display: none;
}
/*找回密码界面*/
.forget{
    position: absolute;
    width: 300px;
    height: 300px;
    background-color: #eef2f8;
    margin-top: -300px;
    display: none;
}